HSSFRow row = sheet.createRow((short) 0);
HSSFCell cell = row.createCell((short) 0);
cell.setCellValue(new HSSFRichTextString(categorie
.getDiscipline().getNom()));
sheet.addMergedRegion(new Region(0, (short) 0, 0, (short) 1));
cell = row.createCell((short) 2);
cell.setCellValue(new HSSFRichTextString(categorie.getNom()));
sheet.addMergedRegion(new Region(0, (short) 2, 0, (short) 5));
cell = row.createCell((short) 6);
cell.setCellValue(new HSSFRichTextString(categorie.getSexe()));
HSSFUtils.applyStyle(row, style);